201539

Appears in sequences

• McKay-Thompson series of class 9B for the Monster group.at n=43A058091
• Numbers n such that T(n) + T(n+1) + ... + T(n+22) is a square, where T = A000217 (triangular numbers).at n=5A257707
• Number of n X 3 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=3A278409
• Number of nX4 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=2A278410
• T(n,k)=Number of nXk 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=17A278414
• T(n,k)=Number of nXk 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=18A278414